The issue of abortion is emotionally loaded and this often makes for poor, not thoroughly thought out arguments. The questions: "Is abortion immoral" and "Is abortion a murder" are often confused. The pregnancy (and the resulting fetus) are discussed in terms normally reserved to natural catastrophes (force majeure). At times, the embryo is compared to cancer, a thief, or an invader: after all, they are both growths, clusters of cells. The difference, of course, is that no one contracts cancer willingly (except, to some extent, smokers -–but, then they gamble, not contract).
When a woman engages in voluntary sex, does not use contraceptives and gets pregnant – one can say that she signed a contract with her fetus. A contract entails the demonstrated existence of a reasonably (and reasonable) free will. If the fulfillment of the obligations in a contract between individuals could be life-threatening – it is fair and safe to assume that no rational free will was involved. No reasonable person would sign or enter such a contract with another person (though most people would sign such contracts with society).
Find and Buy MOST of my BOOKS and eBOOKS in my Amazon Store: https://www.amazon.com/stores/page/60F8EC8A-5812-4007-9F2C-DFA02EA713B3